[ARM] 3430/1: ARM: OMAP: 5/8 Update PM

Patch from Tony Lindgren

Update OMAP PM code from linux-omap tree:

- Move PM code from plat-omap to mach-omap1 and mach-omap2
  by Tony Lindgren
- Add minimal PM support for omap24xx by Tony Lindgren and
  Richard Woodruff
- Misc updates to omap1 PM code by Tuukka Tikkanen et al
- Updates to the SRAM code needed for PM and FB by Imre Deak

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 75 insertions, 8 deletions

diff --git a/include/asm-arm/arch-omap/pm.h b/include/asm-arm/arch-omap/pm.h
index 7c790425e363..05b003f3a94c 100644
--- a/include/asm-arm/arch-omap/pm.h
+++ b/include/asm-arm/arch-omap/pm.h
@@ -49,7 +49,7 @@
 
 /*
  * ----------------------------------------------------------------------------
- * Powermanagement bitmasks
+ * Power management bitmasks
  * ----------------------------------------------------------------------------
  */
 #define IDLE_WAIT_CYCLES                0x00000fff
@@ -112,32 +112,59 @@
 #endif
 
 #ifndef __ASSEMBLER__
+
+#include <linux/clk.h>
+
+extern void prevent_idle_sleep(void);
+extern void allow_idle_sleep(void);
+
+/**
+ * clk_deny_idle - Prevents the clock from being idled during MPU idle
+ * @clk: clock signal handle
+ */
+void clk_deny_idle(struct clk *clk);
+
+/**
+ * clk_allow_idle - Counters previous clk_deny_idle
+ * @clk: clock signal handle
+ */
+void clk_deny_idle(struct clk *clk);
+
 extern void omap_pm_idle(void);
 extern void omap_pm_suspend(void);
 extern void omap730_cpu_suspend(unsigned short, unsigned short);
 extern void omap1510_cpu_suspend(unsigned short, unsigned short);
 extern void omap1610_cpu_suspend(unsigned short, unsigned short);
+extern void omap24xx_cpu_suspend(u32 dll_ctrl, u32 cpu_revision);
 extern void omap730_idle_loop_suspend(void);
 extern void omap1510_idle_loop_suspend(void);
 extern void omap1610_idle_loop_suspend(void);
+extern void omap24xx_idle_loop_suspend(void);
+
+extern unsigned int omap730_cpu_suspend_sz;
+extern unsigned int omap1510_cpu_suspend_sz;
+extern unsigned int omap1610_cpu_suspend_sz;
+extern unsigned int omap24xx_cpu_suspend_sz;
+extern unsigned int omap730_idle_loop_suspend_sz;
+extern unsigned int omap1510_idle_loop_suspend_sz;
+extern unsigned int omap1610_idle_loop_suspend_sz;
+extern unsigned int omap24xx_idle_loop_suspend_sz;
 
 #ifdef CONFIG_OMAP_SERIAL_WAKE
 extern void omap_serial_wake_trigger(int enable);
 #else
+#define omap_serial_wakeup_init()       {}
 #define omap_serial_wake_trigger(x)     {}
 #endif  /* CONFIG_OMAP_SERIAL_WAKE */
 
-extern unsigned int omap730_cpu_suspend_sz;
-extern unsigned int omap730_idle_loop_suspend_sz;
-extern unsigned int omap1510_cpu_suspend_sz;
-extern unsigned int omap1510_idle_loop_suspend_sz;
-extern unsigned int omap1610_cpu_suspend_sz;
-extern unsigned int omap1610_idle_loop_suspend_sz;
-
 #define ARM_SAVE(x) arm_sleep_save[ARM_SLEEP_SAVE_##x] = omap_readl(x)
 #define ARM_RESTORE(x) omap_writel((arm_sleep_save[ARM_SLEEP_SAVE_##x]), (x))
 #define ARM_SHOW(x) arm_sleep_save[ARM_SLEEP_SAVE_##x]
 
+#define DSP_SAVE(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x] = __raw_readw(x)
+#define DSP_RESTORE(x) __raw_writew((dsp_sleep_save[DSP_SLEEP_SAVE_##x]), (x))
+#define DSP_SHOW(x) dsp_sleep_save[DSP_SLEEP_SAVE_##x]
+
 #define ULPD_SAVE(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x] = omap_readw(x)
 #define ULPD_RESTORE(x) omap_writew((ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]), (x))
 #define ULPD_SHOW(x) ulpd_sleep_save[ULPD_SLEEP_SAVE_##x]
@@ -154,6 +181,10 @@ extern unsigned int omap1610_idle_loop_suspend_sz;
 #define MPUI1610_RESTORE(x) omap_writel((mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]), (x))
 #define MPUI1610_SHOW(x) mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_##x]
 
+#define OMAP24XX_SAVE(x) omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_##x] = x
+#define OMAP24XX_RESTORE(x) x = omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_##x]
+#define OMAP24XX_SHOW(x) omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_##x]
+
 /*
  * List of global OMAP registers to preserve.
  * More ones like CP and general purpose register values are preserved
@@ -176,6 +207,15 @@ enum arm_save_state {
         ARM_SLEEP_SAVE_SIZE
 };
 
+enum dsp_save_state {
+        DSP_SLEEP_SAVE_START = 0,
+        /*
+         * DSP registers 16 bits
+         */
+        DSP_SLEEP_SAVE_DSP_IDLECT2,
+        DSP_SLEEP_SAVE_SIZE
+};
+
 enum ulpd_save_state {
         ULPD_SLEEP_SAVE_START = 0,
         /*
@@ -254,5 +294,30 @@ enum mpui1610_save_state {
 #endif
 };
 
+enum omap24xx_save_state {
+        OMAP24XX_SLEEP_SAVE_START = 0,
+        OMAP24XX_SLEEP_SAVE_INTC_MIR0,
+        OMAP24XX_SLEEP_SAVE_INTC_MIR1,
+        OMAP24XX_SLEEP_SAVE_INTC_MIR2,
+        OMAP24XX_SLEEP_SAVE_CM_FCLKEN1_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_FCLKEN2_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_ICLKEN1_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_ICLKEN2_CORE,
+        OMAP24XX_SLEEP_SAVE_CM_ICLKEN4_CORE,
+        OMAP24XX_SLEEP_SAVE_GPIO1_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO2_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO3_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO4_IRQENABLE1,
+        OMAP24XX_SLEEP_SAVE_GPIO3_OE,
+        OMAP24XX_SLEEP_SAVE_GPIO4_OE,
+        OMAP24XX_SLEEP_SAVE_GPIO3_RISINGDETECT,
+        OMAP24XX_SLEEP_SAVE_GPIO3_FALLINGDETECT,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_SPI1_NCS2,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_MCBSP1_DX,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_SSI1_FLAG_TX,
+        OMAP24XX_SLEEP_SAVE_CONTROL_PADCONF_SYS_NIRQW0,
+        OMAP24XX_SLEEP_SAVE_SIZE
+};
+
 #endif /* ASSEMBLER */
 #endif /* __ASM_ARCH_OMAP_PM_H */
diff --git a/include/asm-arm/arch-omap/sram.h b/include/asm-arm/arch-omap/sram.h
index e72ccbf0fe06..6fc0dd57b7c3 100644
--- a/include/asm-arm/arch-omap/sram.h
+++ b/include/asm-arm/arch-omap/sram.h
@@ -20,6 +20,8 @@ extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
                                       u32 mem_type);
 extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass);
 
+extern unsigned long omap_fb_sram_start;
+extern unsigned long omap_fb_sram_size;
 
 /* Do not use these */
 extern void sram_reprogram_clock(u32 ckctl, u32 dpllctl);